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The 'nurse-ins' took place at 100 locations in 35 states--including some in Virginia, Washington D.C. and Maryland--by mothers demonstrating their opinion that it's acceptable to nurse in public.

The demonstration is in response to an incident in November, when mother Michelle Hickman says that she was shopping at a Target in the Houston suburb of Webster when she began to breast-feed her infant son in a public area of the store.

She says she was told by management that “just because it’s a woman’s legal right to nurse a baby in public doesn’t mean she should walk around the store flaunting it."

Amber Campanelli participated in a nurse-in at a Gaithersburg Target with her 8-month-old son and half-dozen other nursing mothers.

"It's really sad that people are still unaware and people still think that feeding a child in public is something that should be hidden," Campanelli said.

The issue is not limited to Target stores, either. In November, a D.C. woman was told that she wasn't allowed to breast-feed in a public building.

The District and 45 states have laws that allow women to breastfeed in public, including Texas.

More than 4,000 people have joined a Facebook group supporting the nurse-ins.

Target issued a statement saying "guests who choose to breastfeed in public areas of the store are welcome to do so without being made to feel uncomfortable."